Dear all, this approach was originated by Bernhard Schiemann of the Erlangen CRM Team and has been discussed in May 2009 (see http://lists.ics.forth.gr/pipermail/crm-sig/2009-May/001355.html). The attachment of this mail is also available at http://erlangen-crm.org/documentation ("Proposal of a E52 Time-Span extension").
In 2009 we implemented this proposal as an "add-on" to the ECRM, which is still available at http://erlangen-crm.org/onto/addons/ecrm-tq_091202.owl . Later (in 2010) we decided to strip this add-on and leave it to the users to extend the ECRM in the way they need it. Since it is "best practice" to extend an ontology by creating subclasses and -properties, Vladimirs approach seems to me a good way to add P81a and P82a to the recent version of the ECRM. Best regards Georg -----Ursprüngliche Nachricht----- Von: [email protected] [mailto:[email protected]] Im Auftrag von Vladimir Alexiev Gesendet: Montag, 26. März 2012 17:53 An: 'Joshan Mahmud'; [email protected] Betreff: Re: [Crm-sig] CRM Time > P81a/b and P82a/b I made this in Nov 2011, see attached. It's for ECRM. Compared to Martin's proposal, I use long prop names, e.g. P81a_end_of_the_begin Cheers! V
